68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/* ----------------------------------------------------------------------- *
|
|
*
|
|
* Copyright 1999-2007 H. Peter Anvin - All Rights Reserved
|
|
*
|
|
* ----------------------------------------------------------------------- */
|
|
|
|
#ifndef BOOT_VESA_H
|
|
#define BOOT_VESA_H
|
|
|
|
typedef struct {
|
|
u16 off, seg;
|
|
} far_ptr;
|
|
|
|
/* VESA General Information table */
|
|
struct vesa_general_info {
|
|
u32 signature; /* 0 Magic number = "VESA" */
|
|
u16 version; /* 4 */
|
|
far_ptr vendor_string; /* 6 */
|
|
u32 capabilities; /* 10 */
|
|
far_ptr video_mode_ptr; /* 14 */
|
|
u16 total_memory; /* 18 */
|
|
|
|
u8 reserved[236]; /* 20 */
|
|
} __attribute__ ((packed));
|
|
|
|
#define VESA_MAGIC ('V' + ('E' << 8) + ('S' << 16) + ('A' << 24))
|
|
|
|
struct vesa_mode_info {
|
|
u16 mode_attr; /* 0 */
|
|
u8 win_attr[2]; /* 2 */
|
|
u16 win_grain; /* 4 */
|
|
u16 win_size; /* 6 */
|
|
u16 win_seg[2]; /* 8 */
|
|
far_ptr win_scheme; /* 12 */
|
|
u16 logical_scan; /* 16 */
|
|
|
|
u16 h_res; /* 18 */
|
|
u16 v_res; /* 20 */
|
|
u8 char_width; /* 22 */
|
|
u8 char_height; /* 23 */
|
|
u8 memory_planes; /* 24 */
|
|
u8 bpp; /* 25 */
|
|
u8 banks; /* 26 */
|
|
u8 memory_layout; /* 27 */
|
|
u8 bank_size; /* 28 */
|
|
u8 image_planes; /* 29 */
|
|
u8 page_function; /* 30 */
|
|
|
|
u8 rmask; /* 31 */
|
|
u8 rpos; /* 32 */
|
|
u8 gmask; /* 33 */
|
|
u8 gpos; /* 34 */
|
|
u8 bmask; /* 35 */
|
|
u8 bpos; /* 36 */
|
|
u8 resv_mask; /* 37 */
|
|
u8 resv_pos; /* 38 */
|
|
u8 dcm_info; /* 39 */
|
|
|
|
u32 lfb_ptr; /* 40 Linear frame buffer address */
|
|
u32 offscreen_ptr; /* 44 Offscreen memory address */
|
|
u16 offscreen_size; /* 48 */
|
|
|
|
u8 reserved[206]; /* 50 */
|
|
} __attribute__ ((packed));
|
|
|
|
#endif /* LIB_SYS_VESA_H */
|